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infidelity

in·fi·del·i·ty [ ìnfi déllətee ] (plural in·fi·del·i·ties)


noun 
Definition:
 
1. unfaithfulness: unfaithfulness or disloyalty, especially to a sexual partner

2. unfaithful act: an act of unfaithfulness or disloyalty, especially to a sexual partner

3. disbelief: absence of religious belief ( disapproving )

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